Roller-bearing.



No. 7|2,s55.. .Patented Nov. 4, I902;

J. A. LAYLAND.

ROLLER BEARING.

(Application filed. Feb. 12, 1902.)

(lo Model.

UJL 1165.665.

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UNITED STATES.

PATENT OFFICE.

I JOSEPH A. LAYLAND, or nosToN, MASSACHUSETTS.

ROLLER-BEARING.

flPECIFICATION forming part of Letters Patent No. 712,555, dated. November 4, 1902. Application filed February 1.2.1902. Serial Nb 93,776. (No model.)

To all whomitmay concern:

Be it known that I, J EPH A. LAYLAND,-a citizen of the United States, residing at Boston, in the county of Sulfolk and State of Massachusetts, have invented a new and useful Roller-Bearing, of which the following is a specification.

Thisinvention relates to that class of antifrict-ion-bearings employing cylindrical roll ers.

The especial object of this invention is to provide means for preventing the drilling or wearing of the ends of the rolls into the cage or other part used for confining said rolls.

To these ends this invention consists of the roller-bearing and of the combinations of parts therein, as hereinafter described, and more particularly pointed out in the claims at the end of this specification.

In the accompanying drawings, Figure 1 is a fragmentary View of a bearing with a shaft journaled therein constructed according to my invention. Fig. 2 is an end View of an antifriction-bearing ring constructed according to my invention. Fig. 3'is a side View of the same, and Fig. 4is a detail perspective view of one of the rolls and the wearing-disks which cooperate therewith.

A serious fault of the roller-bearin gs which have heretofore been employed has been the tendency of the rolls to drill or bore holes through the cage 'ends,jthus destroying the bearing. To overcome this difficulty, it has been proposed to'harden or temper the cage ends. In practice this is objectionable on account of the expense which is necessarily involved and for the reason that the hardening of the cage ends produces a brittle construction, which is liable to be broken. In one instance also it has been proposed to use bearing-balls at the ends of the rolls. The area of contact of the bearing-balls as thus located is in practice, however, not sufficient to produce the best results, and as these balls are usually hardened the balls themselves have a tendency to drill or wear the cage ends. To overcome these objections and to provide for more efficiently taking care of the Wear of the hardened-steel rolls, the rolls are combined with wearing disks, which are dropped into place between the "ends of the rolls and the cage ends.

the cage together.

Referring to the accompanying drawings for a detail description of a roller-bearingcon- 01 ting-pieces 10 and cage ends 11.

. As shown in Fig. 2, the separating-pieces or staves 10 are preferably provided with dow l r ins 12 for fastening the parts of thus constructed are. the rollers 13, and dr d i to place at each end of the rollers 13 ar w a i -disks 14. The inner faces of the wearing-disks are preferably flat or plane, while their outer faces, which engage the cage ends, may be slightly crowned or roundin The diameter of the wearing-disks 14: is slightly less than the diameter of the rolls 13, so that th wearingdisks will not engage the shaft which is mounted in the bearing and will hav no t ndency to groove or channel the shaft. By means of this construction the rate of rotation of the wearing-disks will be less than the rate of rotation of the rolls 13, and inasmuch as the wearing-disks 14 are comparatively thin the bearing-rolls 13 may be considerably longer than in constructions where balls are employed at the ends of the bearing-rollers.

In practice the wearing-disks need not he hardened, being left so ough to protect the cage ends, while the area 'of contact of said wearing-disks will be large enough to prevent the construction from rapidly wearing out.

I am aware that changes may be made in practicing my invention by those who are skilled in the art without departing from the scope thereof as expressed in the claims. I do not Wish, therefore, to be limited to the construction I have herein specifically shown and described; but

What I do claim, and desire to secure by Letters Patent of the United'States, is-

1. In a roller-bearing, the combination of a cage, comprising end plates, separating-bars connecting the end plates, rolls confined in place by said separating-bars, and wearing- Ag herein illustrated, this roller-bear-' Mounted in the cage as disks arranged coaxially with the rolls for preventing the rolls from wearing the end plates.

2. In a roller-bearing, the combination of a frame or cage, comprising end plates, separating-pieces connecting the end plates, rolls confined in place by the separating-pieces, and wearing-disks of smaller diameter than the rolls arranged coaxially With the rolls for preventing the rolls from wearing the end plates.

3. In a roller-bearing, the combination of a cage, consisting of end plates, separatingpieces connecting the end plates, hardened- 

